Intel® Fortran Compiler for Linux* and Mac OS X*

process blocking on Altix

I have an MPI application that launches another executable on rank zero via a system call. The problem is that the other MPI ranks sit at a barrier consuming cycles that I want my other executable to use. In my IRIX64 days, I used blockproc/unblockproc to put the 'extra' MPI ranks to sleep and revive them when needed. I cannot find anything similar on the Altix platform.

Do you know of any routines on the Altix that mimic the functionality of [un]blockproc?

Dan

Weird segmentation fault problem...

I am experiencing a very weird segmentation fault problem with a parallel MPI code compiled with the Intel fortran compiler. The mpi compiler uses ifort version 9.0.026. I have been running this code using 256 processors in parallel on the NCSA Intel Xeon Linux Cluster. Here is the link for this cluster: http://www.ncsa.uiuc.edu/UserInfo/Resources/Hardware/XeonCluster/

"Error in opening the Library module file."

Hello,

I get with l_fc_pc_8.1.025 the following error message:

ifort -cm -W0 -O3 -r8 -DCPP_APC -DCPP_DOUBLE -DCPP_INVERSION -c plot_od.F
fortcom: Error: plot_od.F, line 29: Error in opening the Library module file. [fn#fn]
USE m_outcdn
----------^

But: m_outcdn.mod exists (produced from outcdn.F = MODULE m_outcdn)

Any ideas?

Tobias

fc9.0 and galgel in SPEC2000

Hi,

I am trying to compile a fortran program, galgel, in spec2000. While there is no problem for other benchmarks, I cannot compile galgel with fc9.0. The error message is as following:

ifort -c -o modules.o -O3 -fomit-frame-pointer modules.f90
fortcom: Error: modules.f90, line 1: Unrecognized token '#' skipped
C ############ Maximal sizes ####################################
--^
fortcom: Error: modules.f90, line 1: Unrecognized token '#' skipped
C ############ Maximal sizes ####################################
---^

error loading shared libraries: libguide.so

Hi all,
I've got the intel fortran compiler and mkl installed on a P4
The Linux OS is Kubuntu (maybe not the fittest for computational apps but...)
All installations were successful, maybe it is worthy to report that I had to use alien to convert the mkl rpm to a ".deb" package to get it installed - so I didn't use the standard install.sh script.

Once I build up my application this way:...

Symbol lookup error

Hello,

I'm trying to compile and link an Intel Linux f90 project. Compilation and linking seemed to be correct : no error appear. But when I try to run the program, I get this error :

imp: symbol lookup error: imp:unidefined symbol: pghpf_me_

imp is the name of the program. I have no idea on how to solve this problem.

Best regards,

Didace

Alignment of ALLOCATABLES

Is there any method to specify data alignment requirements
for allocatable arrays? I need this to be able to call
FFTW routines when the FFTW library is compiled to use
SSE2 instructions. I believe there is a 32-byte alignment
requirement in this case. My code definitely crashes
when linked against an sse3 version of FFTW but is OK
with a non-sse2 version.

ignoring unknown option '-byteswapio'

I am trying to compile a program prepared to be compiled or work under " pgf77" fortran. In the makefile there is the next sentences:
F77 = pgf77

FLGS = -byteswapio

I changed the first one to "F77 = ifort" because I am using Intel Fortran 9.0, but I have an error (or a warning) with the function -byteswapio:

ifort: Command line warning: ignoring unknown option '-byteswapio'

Could anyone help me and tell me what I have to put in the place of '-byteswapio'?

Thanks for all

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